Originally Posted by T Stew

I have one like the first from ebay, sold under Selle SMP name (obviously a cheap copy not the real thing for under $50). Was for my go fast/tri bike. I rode it just a few times last year, probably only a couple hundred miles on it tops so not a long term report but its held up fine. It's not as comfortable to me as my padded seats but that is a personal thing. For a short training ride or race it would fine. With it being very curvy though one can't move around on it a lot so your stuck to more of an exact position. I do worry that one large pothole or something could cause the carbon rails to snap, but maybe just paranoid about cheap Chinese rip offs. So far so good.